Undercarriage Parts Track Chain Link Compatible with Kobelco SK120 Excavator
This SK120 track chain is built to withstand tough jobsite conditions while maintaining proper track tension and smooth operation. Precision-forged links, heat-treated pins and bushings, and strict quality checks make it a reliable replacement for your Kobelco undercarriage.
| Material | 35MnB/40Mn2 |
|---|---|
| Surface Hardness | HRC53-58 |
| Colors | Black or yellow or customized |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
Our track chain assembly is designed to deliver perfect fitment and performance for Kobelco SK120 and similar excavator models. It transfers engine power smoothly across the track system, providing excellent traction, stability, and mobility in rough terrain.
The chain assembly includes forged links, hardened pins, and bushings that rotate with low friction to reduce wear and ensure optimal alignment with the sprocket and rollers.
Material Selection & Heat Treatment Process
We follow a robust production process to ensure durability and dimensional precision:
- Raw Material Selection: High-strength alloy steel such as 35Mn or 40Mn2 ensures a tough and wear-resistant base.
- Forging & Machining: Each link is forged, heat-treated, and CNC-machined for uniformity and tight tolerances.
- Heat Treatment: Pins and bushings are hardened to HRC 55±2 for abrasion resistance.
- Assembly & Preloading: The assembled chain is tension-tested to simulate field stress, ensuring longevity.
- Anti-Rust Coating: A final black oxide finish or industrial-grade paint protects the surface from corrosion during storage and use.
Flow Chart
We can support your product presentation with the following media:
Track Link Forging & Machining
The raw track links are forged into form, then machined to ensure uniform pitch and hole alignment. Precision is essential for proper sprocket and bushing engagement.
Pin and Bushing
Hardened pins are inserted between the links to create a flexible, load-bearing chain. The sealing system prevents grease leakage and contaminant ingress.
Painting & Surface Coating
After assembly, the entire chain is cleaned and painted with industrial-grade coatings to protect against rust, humidity, and chemical corrosion on job sites.
Final Inspection & Packaging
Before shipping, the chains undergo dimensional checks and torque verification. Chains are then packed securely on wooden pallets or steel frames to avoid deformation.
Photos and inspection videos can be provided before shipping for your peace of mind.
Compatible Models & Fitment Guidance
This track chain fits:
- Kobelco SK120 / SK120-3 / SK120-5 / SK120-6
Other compatible Kobelco models with the same track pitch and link count
We can assist you in confirming fitment based on machine serial number or drawing.
OEM Undercarriage Parts for Kobelco Excavator
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| KOBELCO | SK30 | SK35 | SK40 | SK45 | SK55 | SK60 | SK60-8 | SK60-10 |
| SK75 | SK100 | SK120 | SK120-5 | SK120-6 | SK130 | SK135 | SK135SR | |
| SK135SR-2 | SK140 | SK140SR | SK200 | SK200-3 | SK200-5 | SK200-6 | SK200-8 | |
| SK200-10 | SK210 | SK210-8 | SK210LC | SK220 | SK230 | SK230LC | SK250 | |
| SK250-8 | SK260 | SK260LC | SK270 | SK300 | SK300-6 | SK300-8 | SK320 | |
| SK330 | SK330-6 | SK350 | SK350-8 | SK350LC | SK380 | SK400 | SK450 | |
| SK480 | SK480-8 | SK485 | SK500 | SK500LC | SK850 | SK850LC | ||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Why Choose Our SK120 Excavator Track Chain?
- Perfect OEM Fit – Engineered to match the dimensions and pitch of SK120's undercarriage
- Heavy-Duty Durability – Heat-treated for longer service life in high-impact applications
- Fast Delivery – Steady inventory and fast processing for urgent orders
- OEM/ODM Branding Support – We support logo engraving, label printing, and customized packaging
- Pre-Delivery Inspection – We provide photos and inspection videos before shipment to ensure product accuracy
Application Scenarios
The SK120 chain is suitable for various demanding operations, including:
- Earthmoving and excavation in mixed soil conditions
- Infrastructure and foundation projects
- Forestry and agriculture site prep
- Demolition or trenching work in compact urban areas
Its durability ensures stable performance even on sloped, wet, or rocky terrain.
Maintenance Tips for Extended Chain Life
- Always maintain correct track tension to avoid premature wear
- Regularly inspect and grease the bushings if your machine requires it
- Replace worn sprockets or idlers to prevent chain misalignment
- Avoid sharp turns or constant operation on uneven terrain
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
